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Fitbit Sense Aluminium 40mm Waterproof Smartwatch with Heart Rate Monitor (Carbon/Graphite Stainless Steel)
Smartwatches

Fitbit Sense Aluminium 40mm Waterproof Smartwatch with Heart Rate Monitor (Carbon/Graphite Stainless Steel)

This smartwatch features a wide range of functions that make it ideal for monitoring your fitness and health. With built-in sensors such as GPS, altimeter, gyroscope, heart rate monitor, and oximeter,...

This smartwatch features a wide range of functions that make it ideal for monitoring your fitness and health. With built-in sensors such as GPS, altimeter, gyroscope, heart rate monitor, and oximeter, it provides you with detailed data on your movement and well-being. The sleep and breathing tracking capabilities offer insights into your sleep quality,...

See full description See full description

Top specs

  • Battery Life

    Battery life shows how many days the smartwatch can operate without charging.


    It depends on the battery capacity, but also on how much you use it (e.g. active display, GPS, notifications, etc.).


    For example, a smartwatch with 2-3 days of battery life is ideal for daily use with all features enabled.


    Models with 5–10 days or more are suitable for those who do not want to charge often or use it more "lightly".


    The value is especially meaningful when comparing products from the same manufacturer.

  • Display Type

    AMOLED

    Advanced OLED screen type with better visual experience, almost perfect black performance, thin and light but with higher energy consumption than Super AMOLED.

  • Waterproof

    Sea Swimming

    The smartwatch offers enhanced durability so you can wear it in the sea. Resistant to saltwater and tough marine conditions, it is the ideal companion for your summer adventures.
  • See all
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Product report

Description

Description

This smartwatch features a wide range of functions that make it ideal for monitoring your fitness and health. With built-in sensors such as GPS, altimeter, gyroscope, heart rate monitor, and oximeter, it provides you with detailed data on your movement and well-being. The sleep and breathing tracking capabilities offer insights into your sleep quality, helping you better understand your body's needs.

The 1.58-inch AMOLED display provides vibrant colors and high contrast while being energy efficient. This allows you to enjoy a clear and impressive image with every use. Additionally, the smartwatch's waterproof design makes it suitable for swimming in the sea, making it the perfect companion for your summer activities.

The smartwatch's ability to connect via Bluetooth, NFC, and Wi-Fi offers convenience in data collection and allows you to make contactless payments. It is compatible with Android and iOS phones, requiring the appropriate connection for maximum functionality. The continuous monitoring of your activities and the statistics it generates provide useful insights into your daily activity.

  • Built-in sensors: GPS, altimeter, gyroscope, heart rate monitor, oximeter, and sleep tracking.
  • 1.58-inch AMOLED display for vibrant colors and high contrast.
  • Waterproof, suitable for swimming in the sea.
  • Connects via Bluetooth, NFC, and Wi-Fi for contactless payments and data synchronization.
  • Compatible with Android and iOS phones.

Manufacturer

Manufacturer Details

Warnings & Safety Information
See full description

Specifications

Specifications

Technical Specifications

Colour
Black
Release Date
2020
Screen Size
1.58 "

Screen Size

"The design and size of the casing affect how each screen size appears on the wrist. Most smartwatches have screens of 1.4-1.5 inches."
Screen Resolution
300x300 pixels
Screen Type
AMOLED

Screen Type

AMOLED

Advanced OLED screen type with better visual experience, almost perfect black performance, thin and light but with higher energy consumption than Super AMOLED.
Compatible Operating System
Android, iOS

Compatible Operating System

The smartphone must be compatible with the watch. Apple Watches only connect with iPhones, while some others can connect with both Android and iPhones, but some functions may not be fully supported.
Touch Screen
Yes
Connection
Bluetooth, NFC, Wi-Fi

Connection

Bluetooth
The basic way to connect your smartwatch to your mobile phone and other supported devices, such as wireless headphones.
NFC
The smartwatch has the ability to make contactless payments where supported, with applications such as Android Pay, Fitbit Pay, etc.
Wi-Fi

Ability to connect to wireless networks for internet access through the smartwatch.
Strap
Silicone
Case material
Aluminum

Case material

Aluminum

A popular and economical material for constructing the case with low weight (less than half that of stainless steel), but with less resistance to impacts and scratches compared to other materials except plastic.

Features & Functions

Features
Vibration, Speaker, Microphone

Features

Speaker

Playback of multimedia, notification sounds, or voice.

Microphone
For voice commands or speech.
Features & Functions
Caller ID, Application / Calls Notification

Features & Functions

Caller ID

The smartwatch can display the name of the contact who is calling.

Application / Calls Notification

The smartwatch has the ability to transfer notifications from our mobile phone applications such as receiving SMS, Email or a notification from a social media application. Depending on the smartwatch, we may also be able to read it directly from it.
Use
Casual Use

Use

The smartwatch has the ability to record the corresponding activity and produce relevant statistics.
Smart Assistant
Alexa, Google Assistant

Smart Assistant

The smartwatch features a built-in smart assistant that operates with voice commands. Through it, we can request information (e.g. about the weather) or give commands to other devices that belong to the same smart ecosystem (e.g. to turn off a smart light bulb).

Alexa
Smart Amazon assistant.
Google Assistant
Smart Google Assistant.

Additional Specifications

Sensors
GPS, Altimeter, Gyroscope, Accelerometer, Heart Rate, Oximeter, Sleep Monitoring, Electrocardiogram

Sensors

GPS
Technology that allows for the detection of geographic location via satellite. Particularly useful for navigation through map applications such as Google Maps.
Altimeter
Like a barometer, an altimeter measures atmospheric pressure by translating it into altitude, aiding in faster GPS location detection for navigation applications, as well as tracking how many floors we have climbed for health applications.
Gyroscope
A sensor that helps the device know its position in space. For example, it allows the device to understand when we turn our wrist to look at the screen.
Accelerometer
This sensor allows the device to perceive changes in acceleration. For example, with this sensor, it can count the steps we take when wearing it.
Heart Rate

Embedded heart rate monitor.

Oximeter

Measure the amount of oxygen in the blood.

Sleep Monitoring

Recording of heart rate and breathing during sleep and diagnosis of problems according to the product. (e.g. restless sleep, lack of deep sleep, etc.)
ATM Rating
5 ATM

ATM Rating

The ATM rating on smartwatches indicates their level of water resistance, which tells how well the watch can withstand exposure to water and various pressure levels.

3 ATM (30 meters): Suitable for everyday splashes, rain, and hand washing.

5 ATM (50 meters): Light swimming, showering.

10 ATM (100 meters): Swimming, snorkeling, water sports.

15 ATM (150 meters): Advanced swimming, water sports.

20 ATM (200 meters): Diving, deep water activities.

50 ATM (500 meters): Professional diving, excellent water resistance.
Waterproof
Sea Swimming

Waterproof

Sea Swimming

The smartwatch offers enhanced durability so you can wear it in the sea. Resistant to saltwater and tough marine conditions, it is the ideal companion for your summer adventures.
MIL-STD-810
No

Battery

Battery Life
6 days

Battery Life

Battery life shows how many days the smartwatch can operate without charging.


It depends on the battery capacity, but also on how much you use it (e.g. active display, GPS, notifications, etc.).


For example, a smartwatch with 2-3 days of battery life is ideal for daily use with all features enabled.


Models with 5–10 days or more are suitable for those who do not want to charge often or use it more "lightly".


The value is especially meaningful when comparing products from the same manufacturer.
Standby Time
6 days

Standby Time

The amount of time a smartwatch can operate in standby mode, simply connected to a mobile phone with one charge. A typical average is 12 days, but it depends on what each manufacturer defines as standby mode. Size makes sense mainly in comparing products from the same manufacturer.

Dimensions

Case Size
40 mm

Case Size

40
This size is usually intended for fruits with a circumference of 14-16.5cm.

AI Features

AI Voice Assistant
No
AI Training Coach
-
AI Health Insights
-

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

See all specifications

Reviews (9)

Reviews

3.3
9
3.3
Review this product
  1. 2
  2. 3
  3. 2
  4. 2 stars
    0
  5. 2
Review this product
  • Comfort
  • Screen
  • Accuracy in measurements
  • Sufficient number of features
  • Durability
  • Easy synchronization
  • Battery life
  • Construction quality
  • Value for money

Reviews by our members

P_DELETED_1822146
4
26 out of 27 members found this review helpful
P_DELETED_1822146

Verified purchase

The biggest problem is the activation of the ECG app. You don't need to be a premium member to see the advanced health metrics. WARNING: We need to wear the watch for at least 5 nights for all the Health statistics to appear on the app!

FOR ECG ACTIVATION, FIRST WATCH THE FOLLOWING VIDEOS

How to enable ECG on Fitbit Sense if you are in unsupported country:
https://www.youtube.com/watch?v=LtVfMGv2Kj0

Also, the following video for the general operation of ECG (instructions for the first time):
https://www.youtube.com/watch?v=j3wSO_qlFjk

ECG PDF instructions here:
https://www.fitbit.com/global/us/technology/ecg
and
https://help.fitbit.com/manuals/manual_ecg_en_US.pdf

STEPS
1. Download the Fitbit app on our mobile phone
2. Activate a VPN with the United States as the location (using a free app like HotSpotShield Basic or any other VPN client for mobile)
3. With the VPN ON, create a new FitBit account with an address in the United States (https://www.fitbit.com/global/us/setup)
4. Log in to the FitBit app from the mobile phone
5. In the App settings, go to Location and select United States
6. In the App, go to Profile - Personal - Location and select United States
7. In the App, go to the Sense device - Apps - ECG and activate it
8. While the VPN is still ON, open the ECG from the smartwatch as shown in the second video
9. In the Fitbit App, go to the TODAY tab, then tap the DISCOVER tab. After that, tap Health Assessments & Reports. Heart Rhythm Assessment (ECG) and follow the instructions

Good luck to everyone!

Translated from Greek ·
  • Easy synchronization
  • Sufficient number of features
  • Accuracy in measurements
  • Construction quality
  • Screen
  • Battery life
  • Value for money
  • Comfort
Did you find this review helpful?

angelooom
1
13 out of 15 members found this review helpful
angelooom

Verified purchase

I had bought it for my wife and she has been using it for two years now. Once a month, a small wound appeared under her wrist from wearing the watch. Well, we thought it was just a coincidence, as she generally has sensitive skin. She stopped wearing it and I wore it for one night. The truth is, I felt a slight discomfort, like an electric shock, on my wrist where the watch was. I thought it was just my imagination. Well, in the morning, the discomfort was still there and I also had a small wound (bigger than my wife's) on the top part of my wrist under the watch! It felt like someone had pierced my hand at that spot!

With a little research, I noticed that what I experienced had happened to others as well, but with the Ionic, which was actually recalled due to overheating issues! (In Greece, some people still sell it normally!) Maybe at night, when the sensor that measures blood oxygen (SpO2) is activated, overheating begins. I used to be loyal to Fitbit (since the 1st charge), but now, never again! I had the Charge 1, 2, and never had any issues. It's a shame because I paid 320€ when it was first released

Translated from Greek ·
  • Easy synchronization
  • Sufficient number of features
  • Accuracy in measurements
  • Screen
  • Durability
  • Battery life
  • Comfort
  • Construction quality
  • Value for money
Did you find this review helpful?
  • Dimitris_TjimS
    4
    Dimitris_TjimS

    I have used products from this company before, good measurements, the main reason I bought it is for the fitbit application, I think it is very useful, easy to use and it analyzes everything if you dig a little, personally I expected the battery to last 6 days, it actually lasts 4 to 6 days. There are better aesthetic options, but the detailed application is the fitbit... I don't think any other android company can reach it. Perfect for casual everyday use

    Translated from Greek ·
    • Easy synchronization
    • Sufficient number of features
    • Accuracy in measurements
    • Construction quality
    • Screen
    • Durability
    • Comfort
    • Battery life
    • Value for money
    Did you find this review helpful?
  • sinonick
    1
    2 out of 7 members found this review helpful
    sinonick

    Verified purchase

    The device is very slow in response in the menu.
    You can't see the time without pressing the button, it doesn't wake up with wrist movement to check the time.
    After the latest update, when you press the button to see the time, instead of showing the time, it shows a notification that directs you to connect your cards to the fitbit wallet. As a result, to see the time, you have to press the button, but also wait to press it again to remove the notification.
    The synchronization with the mobile is unacceptable, it takes many attempts to sync and it takes too long. If you have days to sync it, it may take more than 1 minute.
    It often turns off for no reason and the only way to turn it back on is to put it back on charging.
    Many of the measurements only work during sleep, for example, oxygen measurement.
    For heart rate measurement, there are better solutions for 30 euros. For other measurements, there are now serious options with less money. This is by no means worth its money.
    Update 1/9/22: I regret this purchase and now the fitbit sense has gone where it belongs, in the trash.

    Translated from Greek ·
    • Comfort
    • Construction quality
    • Screen
    • Battery life
    • Difficult synchronization
    • Limited number of features
    • Inaccuracy in measurements
    • Value for money
    Did you find this review helpful?
  • ViktorasGr
    5
    2 out of 3 members found this review helpful
    ViktorasGr

    It is a quality watch with emphasis on accurate measurements, but in my opinion, it lacks in aesthetics.
    To make the electrocardiogram work, you need to install a VPN on your mobile and log in for the first time from a US location, and then it continues to work normally. It's a shame though that it requires a patent to work...

    Translated from Greek ·
    • Sufficient number of features
    • Accuracy in measurements
    • Screen
    • Durability
    • Battery life
    • Value for money
    • Comfort
    • Moderate difficulty syncing
    • Construction quality
    Did you find this review helpful?
  • elap1801
    5
    7 out of 8 members found this review helpful
    elap1801

    Verified purchase

    This review is about colour: White, case material: Stainless Steel

    Owner of fitbit for many years, I am generally satisfied with their products. I bought this specific watch MAINLY for the ecg, which, however, has not been released in Greece yet. For me, that is its main drawback.
    Generally satisfied with the rest.
    Google assistant has been a lifesaver for me.
    If it had the ecg, it would be 5 stars from me, but you pay so much money just for this feature and in the end, you don't have it. Such a shame.
    Update 28/1/22:
    Since I followed the instructions with the vpn, I finally managed to get the ecg feature, so I'm changing my rating to 5 stars.

    Translated from Greek ·
    • Easy synchronization
    • Construction quality
    • Screen
    • Battery life
    • Comfort
    • Sufficient number of features
    • Accuracy in measurements
    • Durability
    • Value for money
    Did you find this review helpful?
  • pavlaras1982
    3
    13 out of 13 members found this review helpful
    pavlaras1982
    This review is about colour: White, case material: Stainless Steel

    I have had the watch for over 5 months.

    I had pre-ordered it.

    I had paid 330 euros.

    Overall, I am satisfied.

    The sleep tracking is detailed and accurate, which is one of the main reasons I chose this company and model.

    It has a battery life of 10-14 days depending on usage.

    The screen is easy to read.

    The notifications have a strong vibration.

    The notifications have good sound.

    I also bought it for the electrocardiogram feature, which has not been available in Greece for 5 months and I don't know when it will be.

    Overall, it is very good and it would be excellent for me if the electrocardiogram function worked.

    I would have liked to receive calls directly on the watch and listen to music with open audio without needing a Bluetooth hands-free device.

    It can be programmed and has even more capabilities.

    This particular watch is worth selling for 200 to 220 euros.

    On Monday, November 22, 2021, the charging cable broke and I bought a new one for 23 euros.

    Yesterday, Sunday, February 13, 2022, it completely stopped working no matter what I try to do.

    I did a Soft Reset by restarting and holding the button for 10 seconds, but it didn't work.

    I did a Hard Reset by changing the Face Clock, but it still didn't work, and now I am waiting for FitBit Europe to tell me what to do to get it replaced.

    There is no FitBit representative in Greece, and the problem is significant when there is no repair shop in your city or country.

    There is no Fitbit Support Email, only contact via Live Chat, where if you delay for 1-2 minutes to respond while completing the steps they tell you to do or take photos and send them, the communication line is cut off, and then you have to reconnect with someone else in technical support and write again everything you said to the previous person and repeat all the steps within the time they give you, otherwise the connection is cut off and you have to start over.

    From 15:00 to 23:40, they frustrated me and made me extremely angry and wanting to explode.

    Nerve-wracking until I was forced to order another watch from another company, specifically the Samsung Watch 4, which has a representative in Greece and has repair shops in all major cities.

    From the 4 stars I initially gave, I now give it 3 stars, and if they don't repair or replace it in the near future while it is still under warranty, I will give it 2 or even 1 star.

    Translated from Greek ·
    • Easy synchronization
    • Sufficient number of features
    • Accuracy in measurements
    • Construction quality
    • Screen
    • Durability
    • Battery life
    • Value for money
    • Comfort
    Did you find this review helpful?
  • iGman
    3
    5 out of 22 members found this review helpful
    iGman

    Big mistake, with a little more money I would have bought an Apple watch. Yes, it would have had a shorter battery life, but it would have had ECG-heart rate monitoring available. It would have had oxygen measurements and sound only during sleep. Skin measurements are again only during sleep.

    For more detailed measurements, you have to be a premium member!

    I couldn't return it because I had already opened the device.

    Really a big mistake, a purchase that I regret as few

    Translated from Greek ·
    • Screen
    • Relative accuracy in measurements
    • Construction quality
    • Durability
    • Battery life
    • Comfort
    • Difficult synchronization
    • Limited number of features
    • Value for money
    Did you find this review helpful?
  • 4
    DIMITRIOS_KATSIVARDAS

    Overall, a very good watchband for its price. Maybe subjectively, I would prefer it slightly larger

    Translated from Greek ·
    • Easy synchronization
    • Sufficient number of features
    • Accuracy in measurements
    • Construction quality
    • Value for money
    • Comfort
    • Screen
    • Durability
    • Battery life
    Did you find this review helpful?
  • Dimitris_TjimS
    4
    Dimitris_TjimS

    I have used products from this company before, good measurements, the main reason I bought it is for the fitbit application, I think it is very useful, easy to use and it analyzes everything if you dig a little, personally I expected the battery to last 6 days, it actually lasts 4 to 6 days. There are better aesthetic options, but the detailed application is the fitbit... I don't think any other android company can reach it. Perfect for casual everyday use

    Translated from Greek ·
    0
  • sinonick
    1
    sinonick

    The device is very slow in response in the menu.
    You can't see the time without pressing the button, it doesn't wake up with wrist movement to check the time.
    After the latest update, when you press the button to see the time, instead of showing the time, it shows a notification that directs you to connect your cards to the fitbit wallet. As a result, to see the time, you have to press the button, but also wait to press it again to remove the notification.
    The synchronization with the mobile is unacceptable, it takes many attempts to sync and it takes too long. If you have days to sync it, it may take more than 1 minute.
    It often turns off for no reason and the only way to turn it back on is to put it back on charging.
    Many of the measurements only work during sleep, for example, oxygen measurement.
    For heart rate measurement, there are better solutions for 30 euros. For other measurements, there are now serious options with less money. This is by no means worth its money.
    Update 1/9/22: I regret this purchase and now the fitbit sense has gone where it belongs, in the trash.

    Translated from Greek ·
    2
  • ViktorasGr
    5
    ViktorasGr

    It is a quality watch with emphasis on accurate measurements, but in my opinion, it lacks in aesthetics.
    To make the electrocardiogram work, you need to install a VPN on your mobile and log in for the first time from a US location, and then it continues to work normally. It's a shame though that it requires a patent to work...

    Translated from Greek ·
    2
  • elap1801
    5
    elap1801

    Owner of fitbit for many years, I am generally satisfied with their products. I bought this specific watch MAINLY for the ecg, which, however, has not been released in Greece yet. For me, that is its main drawback.
    Generally satisfied with the rest.
    Google assistant has been a lifesaver for me.
    If it had the ecg, it would be 5 stars from me, but you pay so much money just for this feature and in the end, you don't have it. Such a shame.
    Update 28/1/22:
    Since I followed the instructions with the vpn, I finally managed to get the ecg feature, so I'm changing my rating to 5 stars.

    Translated from Greek ·
    7
  • pavlaras1982
    3
    pavlaras1982

    I have had the watch for over 5 months.

    I had pre-ordered it.

    I had paid 330 euros.

    Overall, I am satisfied.

    The sleep tracking is detailed and accurate, which is one of the main reasons I chose this company and model.

    It has a battery life of 10-14 days depending on usage.

    The screen is easy to read.

    The notifications have a strong vibration.

    The notifications have good sound.

    I also bought it for the electrocardiogram feature, which has not been available in Greece for 5 months and I don't know when it will be.

    Overall, it is very good and it would be excellent for me if the electrocardiogram function worked.

    I would have liked to receive calls directly on the watch and listen to music with open audio without needing a Bluetooth hands-free device.

    It can be programmed and has even more capabilities.

    This particular watch is worth selling for 200 to 220 euros.

    On Monday, November 22, 2021, the charging cable broke and I bought a new one for 23 euros.

    Yesterday, Sunday, February 13, 2022, it completely stopped working no matter what I try to do.

    I did a Soft Reset by restarting and holding the button for 10 seconds, but it didn't work.

    I did a Hard Reset by changing the Face Clock, but it still didn't work, and now I am waiting for FitBit Europe to tell me what to do to get it replaced.

    There is no FitBit representative in Greece, and the problem is significant when there is no repair shop in your city or country.

    There is no Fitbit Support Email, only contact via Live Chat, where if you delay for 1-2 minutes to respond while completing the steps they tell you to do or take photos and send them, the communication line is cut off, and then you have to reconnect with someone else in technical support and write again everything you said to the previous person and repeat all the steps within the time they give you, otherwise the connection is cut off and you have to start over.

    From 15:00 to 23:40, they frustrated me and made me extremely angry and wanting to explode.

    Nerve-wracking until I was forced to order another watch from another company, specifically the Samsung Watch 4, which has a representative in Greece and has repair shops in all major cities.

    From the 4 stars I initially gave, I now give it 3 stars, and if they don't repair or replace it in the near future while it is still under warranty, I will give it 2 or even 1 star.

    Translated from Greek ·
    13
  • See all
Questions (6)

Questions

15 users have this product and can help you

Ask for the product
Aristea_ko

καλησπέρα, μπορεί κάποιος να μου εξηγήσει αν υπάρχει κάποια πρακτική διαφορά στο αλουμίνιο ή ανοξείδωτο ασημί?

Aristea_ko 2022-07-07
Blizzard

Γενικά το αλουμίνιο έχει πιο ματ αποχρώσεις και το ανοξείδωτο πιο γυαλιστερές.
Σαν ποιότητα υλικού το ανοξείδωτο είναι καλύτερο, αλλά και πιο βαρη
Πρακτική διαφορά ίσως ότι το αλουμίνιο είναι λίγο πιο ευαίσθητο σε γρατζουνιές

Blizzard 2022-07-19
1 Reply Reply to
Blizzard

Μερικοί χρήστες γράφουν ότι το ECG καρδιογράφημα δεν είναι διαθέσιμο στην Ελλάδα..
Πως συμβαίνει αυτό; Είμαι κάτοχος πολλών προϊόντων Fitbit από το πρώτο charge HR ως το τωρινό μου Versa 2 αλλά σκέφτομαι να αναβαθμίσω σε Sence

Blizzard 2021-07-21
pkpsomas

Τo ECG δεν είναι επίσημα διαθέσιμο στην Ελλάδα αλλά ακολουθώντας τις οδηγίες στο video https://www.youtube.com/watch?v=LtVfMGv2Kj0 μπορεί να ενεργοποιηθεί. Επιβεβαιώνω ότι το έκανα με το δικό μου με επιτυχία.

pkpsomas 2021-08-27
2 Replies Reply to
manolis_nikas

Συνδέεται με κινητά pixel;
Μπορείς να απαντήσεις σε κλήση από το ρολόι;

manolis_nikas 2023-02-04
0 Replies Reply to
See all questions (6)

Description & Specifications

This smartwatch features a wide range of functions that make it ideal for monitoring your fitness and health. With built-in sensors such as GPS, altimeter, gyroscope, heart rate monitor, and oximeter, it provides you with detailed data on your movement and well-being. The sleep and breathing tracking capabilities offer insights into your sleep quality, helping you better understand your body's needs.

The 1.58-inch AMOLED display provides vibrant colors and high contrast while being energy efficient. This allows you to enjoy a clear and impressive image with every use. Additionally, the smartwatch's waterproof design makes it suitable for swimming in the sea, making it the perfect companion for your summer activities.

The smartwatch's ability to connect via Bluetooth, NFC, and Wi-Fi offers convenience in data collection and allows you to make contactless payments. It is compatible with Android and iOS phones, requiring the appropriate connection for maximum functionality. The continuous monitoring of your activities and the statistics it generates provide useful insights into your daily activity.

  • Built-in sensors: GPS, altimeter, gyroscope, heart rate monitor, oximeter, and sleep tracking.
  • 1.58-inch AMOLED display for vibrant colors and high contrast.
  • Waterproof, suitable for swimming in the sea.
  • Connects via Bluetooth, NFC, and Wi-Fi for contactless payments and data synchronization.
  • Compatible with Android and iOS phones.

Manufacturer

Manufacturer Details

Warnings & Safety Information

Technical Specifications

Colour
Black
Release Date
2020
Screen Size
1.58 "

Screen Size

"The design and size of the casing affect how each screen size appears on the wrist. Most smartwatches have screens of 1.4-1.5 inches."
Screen Resolution
300x300 pixels
Screen Type
AMOLED

Screen Type

AMOLED

Advanced OLED screen type with better visual experience, almost perfect black performance, thin and light but with higher energy consumption than Super AMOLED.
Compatible Operating System
Android, iOS

Compatible Operating System

The smartphone must be compatible with the watch. Apple Watches only connect with iPhones, while some others can connect with both Android and iPhones, but some functions may not be fully supported.
Touch Screen
Yes
Connection
Bluetooth, NFC, Wi-Fi

Connection

Bluetooth
The basic way to connect your smartwatch to your mobile phone and other supported devices, such as wireless headphones.
NFC
The smartwatch has the ability to make contactless payments where supported, with applications such as Android Pay, Fitbit Pay, etc.
Wi-Fi

Ability to connect to wireless networks for internet access through the smartwatch.
Strap
Silicone
Case material
Aluminum

Case material

Aluminum

A popular and economical material for constructing the case with low weight (less than half that of stainless steel), but with less resistance to impacts and scratches compared to other materials except plastic.

Features & Functions

Features
Vibration, Speaker, Microphone

Features

Speaker

Playback of multimedia, notification sounds, or voice.

Microphone
For voice commands or speech.
Features & Functions
Caller ID, Application / Calls Notification

Features & Functions

Caller ID

The smartwatch can display the name of the contact who is calling.

Application / Calls Notification

The smartwatch has the ability to transfer notifications from our mobile phone applications such as receiving SMS, Email or a notification from a social media application. Depending on the smartwatch, we may also be able to read it directly from it.
Use
Casual Use

Use

The smartwatch has the ability to record the corresponding activity and produce relevant statistics.
Smart Assistant
Alexa, Google Assistant

Smart Assistant

The smartwatch features a built-in smart assistant that operates with voice commands. Through it, we can request information (e.g. about the weather) or give commands to other devices that belong to the same smart ecosystem (e.g. to turn off a smart light bulb).

Alexa
Smart Amazon assistant.
Google Assistant
Smart Google Assistant.

Additional Specifications

Sensors
GPS, Altimeter, Gyroscope, Accelerometer, Heart Rate, Oximeter, Sleep Monitoring, Electrocardiogram

Sensors

GPS
Technology that allows for the detection of geographic location via satellite. Particularly useful for navigation through map applications such as Google Maps.
Altimeter
Like a barometer, an altimeter measures atmospheric pressure by translating it into altitude, aiding in faster GPS location detection for navigation applications, as well as tracking how many floors we have climbed for health applications.
Gyroscope
A sensor that helps the device know its position in space. For example, it allows the device to understand when we turn our wrist to look at the screen.
Accelerometer
This sensor allows the device to perceive changes in acceleration. For example, with this sensor, it can count the steps we take when wearing it.
Heart Rate

Embedded heart rate monitor.

Oximeter

Measure the amount of oxygen in the blood.

Sleep Monitoring

Recording of heart rate and breathing during sleep and diagnosis of problems according to the product. (e.g. restless sleep, lack of deep sleep, etc.)
ATM Rating
5 ATM

ATM Rating

The ATM rating on smartwatches indicates their level of water resistance, which tells how well the watch can withstand exposure to water and various pressure levels.

3 ATM (30 meters): Suitable for everyday splashes, rain, and hand washing.

5 ATM (50 meters): Light swimming, showering.

10 ATM (100 meters): Swimming, snorkeling, water sports.

15 ATM (150 meters): Advanced swimming, water sports.

20 ATM (200 meters): Diving, deep water activities.

50 ATM (500 meters): Professional diving, excellent water resistance.
Waterproof
Sea Swimming

Waterproof

Sea Swimming

The smartwatch offers enhanced durability so you can wear it in the sea. Resistant to saltwater and tough marine conditions, it is the ideal companion for your summer adventures.
MIL-STD-810
No

Battery

Battery Life
6 days

Battery Life

Battery life shows how many days the smartwatch can operate without charging.


It depends on the battery capacity, but also on how much you use it (e.g. active display, GPS, notifications, etc.).


For example, a smartwatch with 2-3 days of battery life is ideal for daily use with all features enabled.


Models with 5–10 days or more are suitable for those who do not want to charge often or use it more "lightly".


The value is especially meaningful when comparing products from the same manufacturer.
Standby Time
6 days

Standby Time

The amount of time a smartwatch can operate in standby mode, simply connected to a mobile phone with one charge. A typical average is 12 days, but it depends on what each manufacturer defines as standby mode. Size makes sense mainly in comparing products from the same manufacturer.

Dimensions

Case Size
40 mm

Case Size

40
This size is usually intended for fruits with a circumference of 14-16.5cm.

AI Features

AI Voice Assistant
No
AI Training Coach
-
AI Health Insights
-

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

Reviews (9)

3.3
9
3.3
Review this product
  1. 2
  2. 3
  3. 2
  4. 2 stars
    0
  5. 2
Review this product
  • Comfort
  • Screen
  • Accuracy in measurements
  • Sufficient number of features
  • Durability
  • Easy synchronization
  • Battery life
  • Construction quality
  • Value for money

Reviews by our members

P_DELETED_1822146
4
26 out of 27 members found this review helpful
P_DELETED_1822146

Verified purchase

The biggest problem is the activation of the ECG app. You don't need to be a premium member to see the advanced health metrics. WARNING: We need to wear the watch for at least 5 nights for all the Health statistics to appear on the app!

FOR ECG ACTIVATION, FIRST WATCH THE FOLLOWING VIDEOS

How to enable ECG on Fitbit Sense if you are in unsupported country:
https://www.youtube.com/watch?v=LtVfMGv2Kj0

Also, the following video for the general operation of ECG (instructions for the first time):
https://www.youtube.com/watch?v=j3wSO_qlFjk

ECG PDF instructions here:
https://www.fitbit.com/global/us/technology/ecg
and
https://help.fitbit.com/manuals/manual_ecg_en_US.pdf

STEPS
1. Download the Fitbit app on our mobile phone
2. Activate a VPN with the United States as the location (using a free app like HotSpotShield Basic or any other VPN client for mobile)
3. With the VPN ON, create a new FitBit account with an address in the United States (https://www.fitbit.com/global/us/setup)
4. Log in to the FitBit app from the mobile phone
5. In the App settings, go to Location and select United States
6. In the App, go to Profile - Personal - Location and select United States
7. In the App, go to the Sense device - Apps - ECG and activate it
8. While the VPN is still ON, open the ECG from the smartwatch as shown in the second video
9. In the Fitbit App, go to the TODAY tab, then tap the DISCOVER tab. After that, tap Health Assessments & Reports. Heart Rhythm Assessment (ECG) and follow the instructions

Good luck to everyone!

Translated from Greek ·
  • Easy synchronization
  • Sufficient number of features
  • Accuracy in measurements
  • Construction quality
  • Screen
  • Battery life
  • Value for money
  • Comfort
Did you find this review helpful?

angelooom
1
13 out of 15 members found this review helpful
angelooom

Verified purchase

I had bought it for my wife and she has been using it for two years now. Once a month, a small wound appeared under her wrist from wearing the watch. Well, we thought it was just a coincidence, as she generally has sensitive skin. She stopped wearing it and I wore it for one night. The truth is, I felt a slight discomfort, like an electric shock, on my wrist where the watch was. I thought it was just my imagination. Well, in the morning, the discomfort was still there and I also had a small wound (bigger than my wife's) on the top part of my wrist under the watch! It felt like someone had pierced my hand at that spot!

With a little research, I noticed that what I experienced had happened to others as well, but with the Ionic, which was actually recalled due to overheating issues! (In Greece, some people still sell it normally!) Maybe at night, when the sensor that measures blood oxygen (SpO2) is activated, overheating begins. I used to be loyal to Fitbit (since the 1st charge), but now, never again! I had the Charge 1, 2, and never had any issues. It's a shame because I paid 320€ when it was first released

Translated from Greek ·
  • Easy synchronization
  • Sufficient number of features
  • Accuracy in measurements
  • Screen
  • Durability
  • Battery life
  • Comfort
  • Construction quality
  • Value for money
Did you find this review helpful?
  • Dimitris_TjimS
    4
    Dimitris_TjimS

    I have used products from this company before, good measurements, the main reason I bought it is for the fitbit application, I think it is very useful, easy to use and it analyzes everything if you dig a little, personally I expected the battery to last 6 days, it actually lasts 4 to 6 days. There are better aesthetic options, but the detailed application is the fitbit... I don't think any other android company can reach it. Perfect for casual everyday use

    Translated from Greek ·
    • Easy synchronization
    • Sufficient number of features
    • Accuracy in measurements
    • Construction quality
    • Screen
    • Durability
    • Comfort
    • Battery life
    • Value for money
    Did you find this review helpful?
  • sinonick
    1
    2 out of 7 members found this review helpful
    sinonick

    Verified purchase

    The device is very slow in response in the menu.
    You can't see the time without pressing the button, it doesn't wake up with wrist movement to check the time.
    After the latest update, when you press the button to see the time, instead of showing the time, it shows a notification that directs you to connect your cards to the fitbit wallet. As a result, to see the time, you have to press the button, but also wait to press it again to remove the notification.
    The synchronization with the mobile is unacceptable, it takes many attempts to sync and it takes too long. If you have days to sync it, it may take more than 1 minute.
    It often turns off for no reason and the only way to turn it back on is to put it back on charging.
    Many of the measurements only work during sleep, for example, oxygen measurement.
    For heart rate measurement, there are better solutions for 30 euros. For other measurements, there are now serious options with less money. This is by no means worth its money.
    Update 1/9/22: I regret this purchase and now the fitbit sense has gone where it belongs, in the trash.

    Translated from Greek ·
    • Comfort
    • Construction quality
    • Screen
    • Battery life
    • Difficult synchronization
    • Limited number of features
    • Inaccuracy in measurements
    • Value for money
    Did you find this review helpful?
  • ViktorasGr
    5
    2 out of 3 members found this review helpful
    ViktorasGr

    It is a quality watch with emphasis on accurate measurements, but in my opinion, it lacks in aesthetics.
    To make the electrocardiogram work, you need to install a VPN on your mobile and log in for the first time from a US location, and then it continues to work normally. It's a shame though that it requires a patent to work...

    Translated from Greek ·
    • Sufficient number of features
    • Accuracy in measurements
    • Screen
    • Durability
    • Battery life
    • Value for money
    • Comfort
    • Moderate difficulty syncing
    • Construction quality
    Did you find this review helpful?
  • elap1801
    5
    7 out of 8 members found this review helpful
    elap1801

    Verified purchase

    This review is about colour: White, case material: Stainless Steel

    Owner of fitbit for many years, I am generally satisfied with their products. I bought this specific watch MAINLY for the ecg, which, however, has not been released in Greece yet. For me, that is its main drawback.
    Generally satisfied with the rest.
    Google assistant has been a lifesaver for me.
    If it had the ecg, it would be 5 stars from me, but you pay so much money just for this feature and in the end, you don't have it. Such a shame.
    Update 28/1/22:
    Since I followed the instructions with the vpn, I finally managed to get the ecg feature, so I'm changing my rating to 5 stars.

    Translated from Greek ·
    • Easy synchronization
    • Construction quality
    • Screen
    • Battery life
    • Comfort
    • Sufficient number of features
    • Accuracy in measurements
    • Durability
    • Value for money
    Did you find this review helpful?
  • pavlaras1982
    3
    13 out of 13 members found this review helpful
    pavlaras1982
    This review is about colour: White, case material: Stainless Steel

    I have had the watch for over 5 months.

    I had pre-ordered it.

    I had paid 330 euros.

    Overall, I am satisfied.

    The sleep tracking is detailed and accurate, which is one of the main reasons I chose this company and model.

    It has a battery life of 10-14 days depending on usage.

    The screen is easy to read.

    The notifications have a strong vibration.

    The notifications have good sound.

    I also bought it for the electrocardiogram feature, which has not been available in Greece for 5 months and I don't know when it will be.

    Overall, it is very good and it would be excellent for me if the electrocardiogram function worked.

    I would have liked to receive calls directly on the watch and listen to music with open audio without needing a Bluetooth hands-free device.

    It can be programmed and has even more capabilities.

    This particular watch is worth selling for 200 to 220 euros.

    On Monday, November 22, 2021, the charging cable broke and I bought a new one for 23 euros.

    Yesterday, Sunday, February 13, 2022, it completely stopped working no matter what I try to do.

    I did a Soft Reset by restarting and holding the button for 10 seconds, but it didn't work.

    I did a Hard Reset by changing the Face Clock, but it still didn't work, and now I am waiting for FitBit Europe to tell me what to do to get it replaced.

    There is no FitBit representative in Greece, and the problem is significant when there is no repair shop in your city or country.

    There is no Fitbit Support Email, only contact via Live Chat, where if you delay for 1-2 minutes to respond while completing the steps they tell you to do or take photos and send them, the communication line is cut off, and then you have to reconnect with someone else in technical support and write again everything you said to the previous person and repeat all the steps within the time they give you, otherwise the connection is cut off and you have to start over.

    From 15:00 to 23:40, they frustrated me and made me extremely angry and wanting to explode.

    Nerve-wracking until I was forced to order another watch from another company, specifically the Samsung Watch 4, which has a representative in Greece and has repair shops in all major cities.

    From the 4 stars I initially gave, I now give it 3 stars, and if they don't repair or replace it in the near future while it is still under warranty, I will give it 2 or even 1 star.

    Translated from Greek ·
    • Easy synchronization
    • Sufficient number of features
    • Accuracy in measurements
    • Construction quality
    • Screen
    • Durability
    • Battery life
    • Value for money
    • Comfort
    Did you find this review helpful?
  • iGman
    3
    5 out of 22 members found this review helpful
    iGman

    Big mistake, with a little more money I would have bought an Apple watch. Yes, it would have had a shorter battery life, but it would have had ECG-heart rate monitoring available. It would have had oxygen measurements and sound only during sleep. Skin measurements are again only during sleep.

    For more detailed measurements, you have to be a premium member!

    I couldn't return it because I had already opened the device.

    Really a big mistake, a purchase that I regret as few

    Translated from Greek ·
    • Screen
    • Relative accuracy in measurements
    • Construction quality
    • Durability
    • Battery life
    • Comfort
    • Difficult synchronization
    • Limited number of features
    • Value for money
    Did you find this review helpful?
  • 4
    DIMITRIOS_KATSIVARDAS

    Overall, a very good watchband for its price. Maybe subjectively, I would prefer it slightly larger

    Translated from Greek ·
    • Easy synchronization
    • Sufficient number of features
    • Accuracy in measurements
    • Construction quality
    • Value for money
    • Comfort
    • Screen
    • Durability
    • Battery life
    Did you find this review helpful?
  • Dimitris_TjimS
    4
    Dimitris_TjimS

    I have used products from this company before, good measurements, the main reason I bought it is for the fitbit application, I think it is very useful, easy to use and it analyzes everything if you dig a little, personally I expected the battery to last 6 days, it actually lasts 4 to 6 days. There are better aesthetic options, but the detailed application is the fitbit... I don't think any other android company can reach it. Perfect for casual everyday use

    Translated from Greek ·
    0
  • sinonick
    1
    sinonick

    The device is very slow in response in the menu.
    You can't see the time without pressing the button, it doesn't wake up with wrist movement to check the time.
    After the latest update, when you press the button to see the time, instead of showing the time, it shows a notification that directs you to connect your cards to the fitbit wallet. As a result, to see the time, you have to press the button, but also wait to press it again to remove the notification.
    The synchronization with the mobile is unacceptable, it takes many attempts to sync and it takes too long. If you have days to sync it, it may take more than 1 minute.
    It often turns off for no reason and the only way to turn it back on is to put it back on charging.
    Many of the measurements only work during sleep, for example, oxygen measurement.
    For heart rate measurement, there are better solutions for 30 euros. For other measurements, there are now serious options with less money. This is by no means worth its money.
    Update 1/9/22: I regret this purchase and now the fitbit sense has gone where it belongs, in the trash.

    Translated from Greek ·
    2
  • ViktorasGr
    5
    ViktorasGr

    It is a quality watch with emphasis on accurate measurements, but in my opinion, it lacks in aesthetics.
    To make the electrocardiogram work, you need to install a VPN on your mobile and log in for the first time from a US location, and then it continues to work normally. It's a shame though that it requires a patent to work...

    Translated from Greek ·
    2
  • elap1801
    5
    elap1801

    Owner of fitbit for many years, I am generally satisfied with their products. I bought this specific watch MAINLY for the ecg, which, however, has not been released in Greece yet. For me, that is its main drawback.
    Generally satisfied with the rest.
    Google assistant has been a lifesaver for me.
    If it had the ecg, it would be 5 stars from me, but you pay so much money just for this feature and in the end, you don't have it. Such a shame.
    Update 28/1/22:
    Since I followed the instructions with the vpn, I finally managed to get the ecg feature, so I'm changing my rating to 5 stars.

    Translated from Greek ·
    7
  • pavlaras1982
    3
    pavlaras1982

    I have had the watch for over 5 months.

    I had pre-ordered it.

    I had paid 330 euros.

    Overall, I am satisfied.

    The sleep tracking is detailed and accurate, which is one of the main reasons I chose this company and model.

    It has a battery life of 10-14 days depending on usage.

    The screen is easy to read.

    The notifications have a strong vibration.

    The notifications have good sound.

    I also bought it for the electrocardiogram feature, which has not been available in Greece for 5 months and I don't know when it will be.

    Overall, it is very good and it would be excellent for me if the electrocardiogram function worked.

    I would have liked to receive calls directly on the watch and listen to music with open audio without needing a Bluetooth hands-free device.

    It can be programmed and has even more capabilities.

    This particular watch is worth selling for 200 to 220 euros.

    On Monday, November 22, 2021, the charging cable broke and I bought a new one for 23 euros.

    Yesterday, Sunday, February 13, 2022, it completely stopped working no matter what I try to do.

    I did a Soft Reset by restarting and holding the button for 10 seconds, but it didn't work.

    I did a Hard Reset by changing the Face Clock, but it still didn't work, and now I am waiting for FitBit Europe to tell me what to do to get it replaced.

    There is no FitBit representative in Greece, and the problem is significant when there is no repair shop in your city or country.

    There is no Fitbit Support Email, only contact via Live Chat, where if you delay for 1-2 minutes to respond while completing the steps they tell you to do or take photos and send them, the communication line is cut off, and then you have to reconnect with someone else in technical support and write again everything you said to the previous person and repeat all the steps within the time they give you, otherwise the connection is cut off and you have to start over.

    From 15:00 to 23:40, they frustrated me and made me extremely angry and wanting to explode.

    Nerve-wracking until I was forced to order another watch from another company, specifically the Samsung Watch 4, which has a representative in Greece and has repair shops in all major cities.

    From the 4 stars I initially gave, I now give it 3 stars, and if they don't repair or replace it in the near future while it is still under warranty, I will give it 2 or even 1 star.

    Translated from Greek ·
    13
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